Abstract: Depending on excellent performance, fiber channel becomes an inevitable choiceof avionics network in next generation. But the message dispatching form of event triggered limit analysing on the performance of the avionics system, in order to increase the time determinacy of message in network, basing on the time triggered protocol, a kind of message scheduling algorithm of time triggered is presented to FC. By means of the switched network modeling, using a method of theory and simulation are combined to analyze the FCFS scheduling algorithm and the time triggered scheduling algorithm, the results show that the time triggered scheduling algorithm can improve the deterministic effectively for network message, meet the request of avionics system security key message transmission.

Key words: fiber channel, event triggered, time deterministic, time triggered protocol

摘要： 光纤通道以其优良性能，成为下一代航电系统的必然选择。但是基于事件触发的消息调度形式限制了对航电系统性能的分析，为提高消息在网络中传输时间确定性，在时间触发协议的基础上，针对光纤通道提出一种时间触发的消息调度算法。通过对交换式网络建模，采用理论和仿真相结合的方法，对先来先服务调度策略和时间触发调度策略进行分析，结果表明时间触发调度算法可以很好地提高网络消息传输的确定性，满足航电系统安全关键消息的传输要求。

关键词: 光纤通道, 事件触发, 时间确定性, 时间触发协议